| 电离层突发E层与太阳活动的相关性 |
| |
| 引用本文： | 左小敏,万卫星.电离层突发E层与太阳活动的相关性[J].地球物理学报,2002,45(6):759-765. |
| |
| 作者姓名： | 左小敏 万卫星 |
| |
| 作者单位： | 中国科学院武汉物理与数学研究所,武汉,430071 |
| |
| 基金项目： | 国家自然科学基金项目 (4 99740 3 9,40 1 3 40 2 0 )，国家重点基础研究规划项目 (G2 0 0 0 0 7840 7) . |
| |
| 摘 要： | 通过对195-1990年3个太阳黑子周期期间不同纬度台站的ES层的临界频率f0ES的观测数据进行统计分析,研究了太阳活动对ES层的强度与出现率的影响,主要结果为:f0ES的年平均值在白天与太阳活动呈强正相关,在夜间呈负相关. 同样,ES的出现率的年变化与太阳活动的关系也是白天呈正相关,夜间呈负相关. 进一步分析表明,上述白天ES层临界频率与太阳活动的正相关性的主要贡献来自于常规E层与太阳活动的强烈相关性. 消除了背景E层电子密度的作用后,ES层的强度在白天与太阳活动呈微弱的正相关,在夜间呈负相关,其相关系数有比较规则的周日变化或半日变化.
|
| 关 键 词： | 太阳活动 突发E层 相关系数. |
| 文章编号： | 0001-5733(2002)06-0759-07 |
THE CORRELATION BETWEEN SPORADIC E-LAYERS AND SOLAR ACTIVITY |
| |
| ZUO XIAO-MINWAN WEI-XING.THE CORRELATION BETWEEN SPORADIC E-LAYERS AND SOLAR ACTIVITY[J].Chinese Journal of Geophysics,2002,45(6):759-765. |
| |
| Authors: | ZUO XIAO-MINWAN WEI-XING |
| |
| Institution: | Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences,Wuhan 430071,China |
| |
| Abstract: | In this paper studies the correlation between solar activity and the intensity of sporadic E-layers by analyzing the global network data of critical frequency of E_S-layer during three solar cycles (1957\_1990). It is obtained that the yearly average of f_0E_S is correlated with solar activity in daytime,and anti-correlated at night. Meanwhile,the occurrence of sporadic E-layers has a positive correlation with solar activity in daytime and negative at nighttime. Detailed analysis shows that the discovered strong positive correlation of f_0E_S with solar activity in daytime is mainly caused by the contribution of regulat E-layers which are deeply controlled by solar activity. When eliminating the contribution of regular E-layers,the intensity of sporadic E-layer is slightly positively correlated with the yearly averaged sunspots number in daytime and negatively correlated at night. The correlation coefficient has a regular diurnal or semi-diurnal variation pattern. |
| |
| Keywords: | Solar activity Sporadic E-layers Correlation coefficient |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
